What is Phentermine?
Phentermine is used as an appetite suppressant. It works by increasing your metabolic rate and decreasing your appetite, and is used in conjunction with an overall diet plan to reduce weight.

How to take Phentermine
Take on an empty stomach, once daily, 30-60 minutes before breakfast. The tablet may be broken or cut in half. Do not crush or chew tablet. Because this medication may cause sleeplessness, avoid taking a dose late in the day. Take this medication as prescribed. Do not take it more often or longer than directed.

Side Effects of Phentermine
Dry mouth, sleeplessness, irritability, stomach upset or constipation may occur the first few days as your body adjusts to the medication. If these effects persist or become bothersome, inform your doctor.

Phentermine Precautions
Tell your doctor your complete medical history especially if you have high blood pressure, an over-active thyroid, glaucoma, diabetes or emotional problems. Consult with your doctor if you think you are pregnant or before breast-feeding. Alcohol can increase unwanted side effects of dizziness. Limit alcohol use. This drug is not recommended for use in children. Consult your doctor or pharmacist for further information.

Phentermine Drug Interactions
Inform your doctor about all the medicines you use, (prescription and nonprescription) especially if you take high blood pressure medicine or MAO inhibitors (e.g., furazolidone, phenelzine, selegiline, tranylcypromine) or any other weight loss medicine. Avoid "stimulant" drugs that may increase your heart rate or blood pressure such as decongestants or caffeine. Decongestants are commonly found in over-the-counter cough and cold medicine.

Missed Dose
If you miss a dose, do not double the next dose. Instead, skip the missed dose and resume your usual dosing schedule.

Storage
Store at room temperature away from sunlight and moisture. Keep this and all medications out of the reach of children.

Notes
Appetite suppressants are not a substitute for proper diet. For maximum effects, this must be used in conjunction with a diet and exercise program. Do not share this medication with others.

The above information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist, or other healthcare professional. It should not be construed to indicate that the use of the product is safe, appropriate, or effective for you. Consult your healthcare professional before taking the product.

Read more about the History of Phetermine here.